Invention Grant
- Patent Title: Negative electrode of rechargeable battery and manufacturing method thereof
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Application No.: US15833392Application Date: 2017-12-06
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Publication No.: US10263247B2Publication Date: 2019-04-16
- Inventor: Jinhyon Lee , Bokhyun Ka , Kyeuyoon Sheem , Soonho Ahn
- Applicant: SAMSUNG SDI CO., LTD.
- Applicant Address: KR Yongin-si, Gyeonggi-do
- Assignee: SAMSUNG SDI CO., LTD.
- Current Assignee: SAMSUNG SDI CO., LTD.
- Current Assignee Address: KR Yongin-si, Gyeonggi-do
- Agency: Lee & Morse, P.C.
- Priority: KR10-2016-0166096 20161207
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01M4/133 ; H01M4/1393 ; H01M4/04 ; H01M4/22

Abstract:
A method for manufacturing a negative electrode of a rechargeable battery includes coating a first active mass on a first surface of a substrate, aligning a first graphite material in the first active mass, and coating a second active mass on a second surface of the substrate. The second active mass includes a second graphite material. The method also includes aligning the second graphite material and pressing the first and second graphite material. The alignment operations are performed by applying magnetic fields, so that a first long axis of the first graphite material forms a first acute angle with the first surface and a second long axis of the second graphite material forms a second acute angle with the second surface. The second long axis is inclined in a direction facing the first long axis, with the substrate therebetween.
Public/Granted literature
- US20180159118A1 NEGATIVE ELECTRODE OF RECHARGEABLE BATTERY AND MANUFACTURING METHOD THEREOF Public/Granted day:2018-06-07
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